private AdvancedIncQueryEngine createEngine() {
boolean wildcardMode =
IncQueryGUIPlugin.getDefault()
.getPreferenceStore()
.getBoolean(PreferenceConstants.WILDCARD_MODE);
boolean dynamicEMFMode =
IncQueryGUIPlugin.getDefault()
.getPreferenceStore()
.getBoolean(PreferenceConstants.DYNAMIC_EMF_MODE);
try {
AdvancedIncQueryEngine engine =
AdvancedIncQueryEngine.createUnmanagedEngine(
key.getNotifier(), wildcardMode, dynamicEMFMode);
return engine;
} catch (IncQueryException e) {
logger.log(
new Status(
IStatus.ERROR,
IncQueryGUIPlugin.PLUGIN_ID,
"Could not retrieve IncQueryEngine for " + key.getNotifier(),
e));
return null;
}
}
public PatternMatcherRootContent(RootContent parent, PatternMatcherRootContentKey key) {
super(parent);
this.children = new ContentChildren<PatternMatcherContent>();
this.taintListener = new ContentEngineTaintListener();
this.mapping = Maps.newHashMap();
this.key = key;
AdvancedIncQueryEngine engine = key.getEngine();
if (engine == null) {
key.setEngine(createEngine());
}
if (engine != null) {
engine.addLifecycleListener(taintListener);
}
}
public void registerPattern(final IQuerySpecification<?>... patterns) {
IncQueryEngine engine = null;
try {
engine = key.getEngine();
if (engine.getBaseIndex().isInWildcardMode()) {
addMatchersForPatterns(patterns);
} else {
engine
.getBaseIndex()
.coalesceTraversals(
new Callable<Void>() {
@Override
public Void call() {
addMatchersForPatterns(patterns);
return null;
}
});
}
contentStatus = Status.OK_STATUS;
} catch (IncQueryException ex) {
reportMatcherError("Cannot initialize pattern matcher engine.", ex);
} catch (InvocationTargetException e) {
reportMatcherError(
"Error during pattern matcher construction: " + e.getCause().getMessage(), e.getCause());
}
}
@Override
public void dispose() {
super.dispose();
AdvancedIncQueryEngine engine = key.getEngine();
if (engine != null) {
engine.removeLifecycleListener(taintListener);
}
}
private void addMatchersForPatterns(IQuerySpecification<?>... queries) {
for (IQuerySpecification<?> query : queries) {
boolean isGenerated = QueryExplorerPatternRegistry.getInstance().isGenerated(query);
addMatcher(key.getEngine(), query, isGenerated);
}
}
public boolean isTainted() {
AdvancedIncQueryEngine engine = key.getEngine();
return (engine == null) ? true : engine.isTainted();
}
